Columbus McKinnon Made in USA Shackles CM Super Strong Shackles are manufactured from technically advanced micro alloy steel with optimal hardness for strength and ductility, with strength ratings that are 17 to 50% stronger than comparable-sized carbon shackles. As a result, these shackles are designed with a 6:1 design factor. Anchor shackles can be side loaded or used for multiple connections.

Shackles show major deformation before failure

Working load limit and traceability codes shown as permanent markings on body